Stud position correction jig

Abstract

The utility model discloses a kind of stud position correction jigs, including jig body, positioning pin and positioning sleeve, the jig body is connected with floor by the positioning pin, first let hole is opened in the jig body, welding gun positioning hole is equipped on the positioning sleeve, after the positioning sleeve and the jig body overlap, the welding gun positioning hole exposes from the first let hole, the positioning sleeve can be adjusted X and Y direction displacement relative to the jig body.The utility model connects jig body and stud position progress qualified floor by positioning pin, then adjust the displacement of positioning sleeve relative to jig body in XY direction, to realize the position calibration of welding gun positioning hole, finally install the jig after calibration to the floor where the stud position has deviated, for correcting the position deviation of stud.The stud position correction jig in the utility model is small in size, light in weight, and convenient to adjust.

Description

Technical Field

[0001] This utility model relates to the technical field of installation fixtures, and in particular to a fixture for calibrating the position of the front and rear floor studs of a vehicle body. Background Technology

[0002] The studs on the front and rear floor assemblies of automobiles are welded by stud welding robots in the welding workshop. When the precision of related fixtures, grippers and other components changes, the studs may shift, causing problems such as difficulty in assembling subsequent engineering parts.

[0003] The existing front and rear floor stud welding fixtures are mainly composed of metal profiles and machined metal parts, which are complex in structure, large in size and weight. Furthermore, the stud welding gun positioning sleeve needs to be adjusted by adding or removing shims, which is complicated and difficult to adjust, making it difficult for operators to perform stud alignment.

[0004] Therefore, it is necessary to design a stud position correction fixture that is small in size, lightweight, and easy to adjust. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a stud position correction fixture that is small in size, light in weight, and easy to adjust.

[0006] The present invention provides a stud position correction fixture, comprising a fixture body, a positioning pin, and a positioning sleeve. The fixture body is connected to the floor via the positioning pin. The fixture body has a first clearance hole, and the positioning sleeve has a welding gun positioning hole. When the positioning sleeve overlaps with the fixture body, the welding gun positioning hole protrudes from the first clearance hole. The positioning sleeve can adjust the displacement in the X and Y directions relative to the fixture body.

[0007] Furthermore, the positioning sleeve includes a Y-axis adjusting plate and an X-axis adjusting plate; The Y-axis adjustment plate is provided with a first adjustment hole and an X-axis adjustment waist hole, the X-axis adjustment plate is provided with a second adjustment hole, and the fixture body is provided with a Y-axis adjustment waist hole; After the fixture body, the Y-axis adjusting plate, and the X-axis adjusting plate are overlapped, the first adjusting hole and the Y-axis adjusting waist hole are used to adjust the Y-axis displacement of the Y-axis adjusting plate, and the second adjusting hole and the X-axis adjusting waist hole are used to adjust the X-axis displacement of the X-axis adjusting plate.

[0008] Furthermore, the Y-axis adjusting plate is also provided with a second clearance hole. The area of ​​the second clearance hole is smaller than the area of ​​the first clearance hole and larger than the area of ​​the welding torch positioning hole. The welding torch positioning hole is provided on the X-axis adjusting plate. After the fixture body, the Y-axis adjusting plate and the X-axis adjusting plate overlap, the welding torch positioning hole is exposed from the second clearance hole, and the second clearance hole is exposed from the first clearance hole.

[0009] Furthermore, the fixture body is also provided with a third clearance hole. After the fixture body, the Y-axis adjustment plate and the X-axis adjustment plate overlap, the X-axis adjustment waist hole is exposed from the third clearance hole.

[0010] Furthermore, the first clearance hole and the third clearance hole are integrated into one unit.

[0011] Furthermore, the fixture body has multiple floor positioning holes for inserting the positioning pins.

[0012] Furthermore, it also includes a stud welding calibration tool, which is used to insert into the welding torch positioning hole.

[0013] Furthermore, the fixture body is made of a transparent acrylic sheet.

[0014] Furthermore, the positioning sleeve is made of bakelite.

[0015] Furthermore, it also includes a handle, which is mounted on the fixture body.

[0016] The above technical solution has the following beneficial effects: This invention connects the fixture body to the floor where the stud position is correct using a locating pin. Then, the XY displacement of the locating sleeve relative to the fixture body is adjusted to calibrate the position of the welding gun locating hole. Finally, the calibrated fixture is installed on the floor where the stud position has shifted to correct the stud's positional deviation. The stud position correction fixture in this invention is small, lightweight, and easy to adjust. Attached Figure Description

[0017] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of a stud position correction fixture installed on the rear floor in one embodiment of the present invention; Figure 2 This is a top view of the stud position correction fixture installed on the front floor in another embodiment of the present invention; Figure 3This is a side view of a stud position correction fixture in another embodiment of the present invention; Figure 4 This is a perspective view of a stud position correction fixture in another embodiment of the present invention; Figure 5 This is an exploded view of the stud position correction fixture in another embodiment of this utility model; Figure 6 This is a perspective view of a stud welding calibration tool in one embodiment of the present invention; Figure 7 This is a schematic diagram of a stud welding calibration tool being inserted into a stud position correction fixture in one embodiment of the present invention.

[0018] Appendix Label Reference Table: Fixture body 1: First clearance hole 11, Y-direction adjustment waist hole 12, third clearance hole 13, floor positioning hole 14; Positioning pin 2; Y-direction adjustment plate 3: first adjustment hole 31, X-direction adjustment waist hole 32, second clearance hole 33; X-axis adjustment plate 4: second adjustment hole 41, welding gun positioning hole 42; 5. Stud welding calibration tool; 6. Handle; 10. Floor. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] It is readily understood that, based on the technical solution of this utility model, various structural and implementation methods can be interchanged by those skilled in the art without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0022] In some embodiments of this utility model, such as Figures 1-2As shown, the stud position correction fixture includes a fixture body 1, a positioning pin 2, and a positioning sleeve. The fixture body 1 is connected to the floor through the positioning pin 2. The fixture body 1 has a first clearance hole 11, and the positioning sleeve has a welding gun positioning hole 42. After the positioning sleeve overlaps with the fixture body 1, the welding gun positioning hole 42 is exposed from the first clearance hole 11. The positioning sleeve can adjust the displacement in the X and Y directions relative to the fixture body 1.

[0023] Specifically, such as Figure 1 As shown, the fixture body 1 is a single flat plate structure. A fixture body 1 is provided with multiple positioning pins 2 and multiple positioning sleeves. Each positioning sleeve corresponds to the mounting position of a stud on the floor 10. Figure 1 The fixture body 1 is connected to six positioning sleeves, which correspond to the installation positions of the six studs on the floor 10. The fixture body 1 is positioned and connected to the floor 10 by positioning pins 2, so that the fixture body 1 is stationary relative to the floor 10. The positioning pins 2 are detachably connected to the fixture body 1. When the stud position correction fixture is not needed, the positioning pins 2 can be pulled out and the fixture body 1 can be removed.

[0024] The positioning sleeve is movably connected to the fixture body 1 and can adjust its displacement in the X and Y directions relative to the fixture body 1.

[0025] like Figure 2 As shown, the fixture body 1 has a circular first clearance hole 11, and the positioning sleeve has a welding gun positioning hole 42. The diameter of the first clearance hole 11 is larger than the diameter of the welding gun positioning hole 42, so that when the positioning sleeve overlaps with the fixture body 1, the welding gun positioning hole 42 protrudes from the first clearance hole 11. When the positioning sleeve moves relative to the fixture body 1 in the XY direction, the welding gun positioning hole 42 remains located in the first clearance hole 11. The welding gun positioning hole 42 is used to align with the mounting position of the studs on the floor 10 to correct the position of the stud mounting position.

[0026] Furthermore, such as Figures 3-5 As shown, the positioning sleeve includes a Y-axis adjusting plate 3 and an X-axis adjusting plate 4; The Y-axis adjustment plate 3 is provided with a first adjustment hole 31 and an X-axis adjustment waist hole 32, the X-axis adjustment plate 4 is provided with a second adjustment hole 41, and the fixture body 1 is provided with a Y-axis adjustment waist hole 12. After the fixture body 1, the Y-axis adjusting plate 3 and the X-axis adjusting plate 4 are overlapped, the first adjusting hole 31 and the Y-axis adjusting waist hole 12 are used to adjust the Y-axis displacement of the Y-axis adjusting plate 3, and the second adjusting hole 41 and the X-axis adjusting waist hole 32 are used to adjust the X-axis displacement of the X-axis adjusting plate 4.

[0027] Specific position, such as Figure 3 As shown, the fixture body 1, the Y-axis adjustment plate 3, and the X-axis adjustment plate 4 are stacked sequentially from top to bottom, with the X-axis adjustment plate 4 in direct contact with the floor 10.

[0028] like Figure 4 As shown in this embodiment, three sets of positioning sleeves are installed on the fixture body 1.

[0029] like Figure 5 As shown, the fixture body 1 is also provided with Y-direction adjustment waist holes 12. Each set of positioning sleeves is provided with four Y-direction adjustment waist holes 12, which are located at the four corners around the first clearance hole 11.

[0030] Each Y-axis adjustment plate 3 includes four first adjustment holes 31 and four X-axis adjustment waist holes 32.

[0031] Each X-axis adjustment plate 3 includes four second adjustment holes 41.

[0032] like Figure 2 As shown, the Y-direction adjusting waist hole 12 corresponds to the first adjusting hole 31. The bolt passes through the Y-direction adjusting waist hole 12 and the first adjusting hole 31. The bolt can move along the Y direction in the Y-direction adjusting waist hole 12, thereby adjusting the Y-direction displacement of the Y-direction adjusting plate 3 relative to the fixture body 1.

[0033] The X-direction adjusting waist hole 32 corresponds to the second adjusting hole 41. The bolt passes through the X-direction adjusting waist hole 32 and the second adjusting hole 41. The bolt can move along the X direction in the X-direction adjusting waist hole 32, thereby adjusting the X-direction displacement of the X-direction adjusting plate 4 relative to the Y-direction adjusting plate 3.

[0034] Therefore, by adjusting the Y-axis adjusting plate 3 and the X-axis adjusting plate 4, the X-axis and Y-axis adjustment of the welding torch positioning hole 42 is finally achieved.

[0035] Alternatively, the positioning sleeve may include only one adjustment plate, which can be adjusted in the XY direction relative to the fixture body 1.

[0036] Furthermore, such as Figure 5 As shown, the Y-axis adjusting plate 3 is also provided with a second clearance hole 33. The area of ​​the second clearance hole 33 is smaller than the area of ​​the first clearance hole 11 and larger than the area of ​​the welding gun positioning hole 42. The welding gun positioning hole 42 is provided on the X-axis adjusting plate 4. After the fixture body 1, the Y-axis adjusting plate 3 and the X-axis adjusting plate 4 overlap, the welding gun positioning hole 42 is exposed from the second clearance hole 33, and the second clearance hole 33 is exposed from the first clearance hole 11.

[0037] Specifically, the second clearance hole 33 is also a circular hole, and the diameter of the second clearance hole 33 is slightly smaller than the diameter of the first clearance hole 11, so that the welding torch positioning hole 42 can be exposed from the second clearance hole 33.

[0038] Furthermore, such as Figure 2As shown, the fixture body 1 is also provided with a third clearance hole 13. After the fixture body 1, the Y-axis adjustment plate 3 and the X-axis adjustment plate 4 are overlapped, the X-axis adjustment waist hole 32 is exposed from the third clearance hole 13.

[0039] Better, such as Figure 2 As shown, the first clearance hole 11 and the third clearance hole 13 are integrated into one piece, and four third clearance holes 13 are provided around each first clearance hole 11, which correspond to four X-direction adjustment waist holes 32 respectively.

[0040] Furthermore, such as Figure 2 and Figure 4 As shown, the fixture body 1 has multiple floor positioning holes 14, and positioning pins 2 are inserted into the floor positioning holes 14. The floor positioning holes 14 can be set around the fixture body 1, or between multiple positioning sleeves, or at a position on the floor 10 where it is convenient to set the corresponding positioning holes.

[0041] Furthermore, such as Figures 6-7 As shown, it also includes a stud welding calibration tool 5, which is inserted into the welding torch positioning hole 42. The stud welding calibration tool 5 is used to simulate a stud, and when the stud welding calibration tool 5 is inserted into the welding torch positioning hole 42, it is used to confirm whether the stud's mounting position is correct.

[0042] Better, such as Figure 1 As shown, the fixture body 1 is made of transparent acrylic sheet. Since the fixture body 1 is located on the top layer, the transparent material makes it easy to observe the positioning sleeve below.

[0043] Preferably, the positioning sleeve is made of bakelite.

[0044] Optionally, such as Figure 1 As shown, it also includes a handle 6, which is installed on the fixture body 1. The handle 6 facilitates the installation and removal of the stud position correction fixture. The operator can place the stud position correction fixture on the floor 10 or remove it from the floor 10 by holding the handle 6.

[0045] The usage process of the stud position correction fixture in a preferred embodiment of this utility model is as follows: First, the stud position correction fixture is installed on the front and rear floor assemblies with qualified stud position accuracy using the positioning pin 2; Then, adjust the position of the positioning sleeve so that the stud is centered relative to the positioning sleeve; Next, insert the stud welding calibration tool 5 into the positioning sleeve to confirm that the stud is centered.

[0046] This completes the calibration of the stud position correction fixture itself, and the calibrated fixture is then used for calibration operations in different situations below.

[0047] (1) Method for dealing with equipment failure: Install the adjusted fixture on the front and rear floor assemblies without welded studs, insert the manual stud welding gun into the positioning sleeve to weld, and complete the switch to manual plan; (2) Method for dealing with stud position quality problems: Install the adjusted fixture in the front and rear floor assemblies where the stud position is offset. Confirm the stud offset by inserting the stud welding calibration tool 5. Adjust the robot trial teaching trajectory according to the measured offset to correct the stud position deviation.

[0048] This utility model has the following advantages: 1. The overall weight of the stud position correction fixture has been reduced, making it easier for operators to use; 2. The positioning sleeve is easy to adjust; the deviation in the X and Y directions can be adjusted through the waist hole without adding adjustment shims. 3. Introduce a stud welding calibration tool to ensure that the stud is centered relative to the positioning sleeve, thereby improving adjustment efficiency and accuracy; 4. When the automatic welding equipment malfunctions, this set of fixtures can be directly applied to the manual stud welding gun to achieve the switch to manual pre-programming.

[0049] The above description is merely the principle and preferred embodiment of this utility model. It should be noted that, for those skilled in the art, several other modifications can be made based on the principle of this utility model, and these modifications should also be considered within the protection scope of this utility model.

Claims

1. A stud position correction fixture, characterized in that, The fixture includes a fixture body, a positioning pin, and a positioning sleeve. The fixture body is connected to the floor via the positioning pin. The fixture body has a first clearance hole, and the positioning sleeve has a welding gun positioning hole. When the positioning sleeve overlaps with the fixture body, the welding gun positioning hole protrudes from the first clearance hole. The positioning sleeve can adjust the displacement in the X and Y directions relative to the fixture body.

2. The stud position correction fixture according to claim 1, characterized in that, The positioning sleeve includes a Y-axis adjustment plate and an X-axis adjustment plate; The Y-axis adjustment plate is provided with a first adjustment hole and an X-axis adjustment waist hole, the X-axis adjustment plate is provided with a second adjustment hole, and the fixture body is provided with a Y-axis adjustment waist hole; After the fixture body, the Y-axis adjusting plate, and the X-axis adjusting plate are overlapped, the first adjusting hole and the Y-axis adjusting waist hole are used to adjust the Y-axis displacement of the Y-axis adjusting plate, and the second adjusting hole and the X-axis adjusting waist hole are used to adjust the X-axis displacement of the X-axis adjusting plate.

3. The stud position correction fixture according to claim 2, characterized in that, The Y-axis adjusting plate is also provided with a second clearance hole. The area of ​​the second clearance hole is smaller than the area of ​​the first clearance hole and larger than the area of ​​the welding gun positioning hole. The welding gun positioning hole is provided on the X-axis adjusting plate. After the fixture body, the Y-axis adjusting plate and the X-axis adjusting plate overlap, the welding gun positioning hole is exposed from the second clearance hole, and the second clearance hole is exposed from the first clearance hole.

4. The stud position correction fixture according to claim 3, characterized in that, The fixture body is also provided with a third clearance hole. After the fixture body, the Y-axis adjustment plate and the X-axis adjustment plate are overlapped, the X-axis adjustment waist hole is exposed from the third clearance hole.

5. The stud position correction fixture according to claim 4, characterized in that, The first clearance hole and the third clearance hole are integrated into one piece.

6. The stud position correction fixture according to claim 1, characterized in that, The fixture body has multiple floor positioning holes, into which the positioning pins are inserted.

7. The stud position correction fixture according to claim 1, characterized in that, It also includes a stud welding calibration tool, which is used to insert into the welding gun positioning hole.

8. The stud position correction fixture according to claim 1, characterized in that, The fixture body is made of transparent acrylic sheet.

9. The stud position correction fixture according to claim 1, characterized in that, The positioning sleeve is made of bakelite.

10. The stud position correction fixture according to claim 1, characterized in that, It also includes a handle, which is mounted on the fixture body.

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